한국어 학습 사전 - Search the dictionary database of the National Institute of Korean Language (국립국어원).

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-Korean word of the day
-multiple language support (English Arabic French Spanish Korean Japanese Vietnamese Thai Indonesian Mongolian Russian)
-advanced search
-create Anki cards directly from the app (requires AnkiDroid to be installed)
-multiple search categories
-Korean definitions
-translated definitions
-idioms / proverbs
-usage examples
-related word information
-word pronunciation
-origin language details
-parts of speech
-applications
-sentence structure examples
-bookmarks
-search history